Eng. Edition 1.0 2004, Nov.
11
Installation of the control box
The separate control box is to be mounted onto a wall or a cool part of the
boiler. Max. allowed temperature 40ºC.
Decide the position for the control box. Check that the cable to the temperature
sensor (2 or 5 m) reaches the insert on the boiler or the accumulator tank. Also
check that the signal cable (3 m) reaches the socket on the burner.
Remove the transparent cover from the control box. Mark the fixing points and
fasten the box in at least two (diagonally positioned) of the four screw holes. If
you place the box onto the boiler, be careful not to damage the boiler.
The screws are not supplied.
Dismantle the front panel, which is held by two screws. You have now access to
the electronics and the terminal.
Connections to control box terminal:
1, 2
Alarm relay (max. 1A, 24 V)
3, 4
Temperature sensor, boiler
5 - 12 Not used
Connect the temperature sensor to the terminals 3 and 4 in the control box. The
cable to the temperature sensor may not be clamped or bundled together with
230 V cables.
An external alarm device can be connected to the terminals 1 and 2 (e.g. GSM
alarm connected to your cell phone or to an alarm lamp). The alarm relay may
not be charged with more than 24 V, 1A. Heavier load requires an external
relay.
Signal cable Connection
cable temp.sensor
Bridge for
Hole for mounting
low effect Circuit board
Figure 2.1 Control box without front panel
1 2 3 4 5 6 7………12
